Sewing-machine.



J. P. WEIS.

SEWING MACHINE.

APPLIGATION FILED Jun. 5, 190a.

Patented May 11, 1909.

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J. P. W EIS. SEWING MACHINE. APPLICATION FILED JUNE 5, 1903.

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Patented May 11, i909."

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UNITED STATES PATENT OFFICE.

JOHN P. \YEIS, OF BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TOMETRO- POLITAN SEWING MACHINE OOMIAIZY, A CORPORATION OF NEW YORK.

BEWIN'fiMAOKINB.

Specification of Letters Qatent.

Patented May 1 1, 1909.

Application filed June 6, 1908. Serial No. 160,207.

To all whom it may concern:

Be it known that I, JOHN P. Wms, a minzen of the United States, residingin Brooklyn, county of Kings, and State of hew York, have invented a newand useful Improvement in Sewing-lilachines, of which the following is adescription.

This invention relates to sewing machines of the chain-stitch type, andmore particularly to machines of the class mentioned for overseamingpurposes.

An object of my invention is to produce a li 'ht and rapid runningmachine and one w icrein all the operating arts are of the simplestcharacter and con uce to ease, rapidity and perfection of operation.

Another object of my invention is to provide an overedging machinehaving very few and simple parts, and one wherein all objectionable andunnecessary arts are eliminated, thus conducing to snnp 'city andstrength.

With the above objects in view and others which will hereafter a pear inthis description my invention consists in the parts, features, elementsand combinations herein after described and claimed.

In the drawin s: Figure 1 is a front elevation of so muc of a sewingmachine as is necessary to illustrate the parts and features of myinvention; Fig. 2 is a top lan illustrating the connection between helooperrod and the spreader-carrier; Fig. 3 is a section on the line1'212 of Fig. 2; Fig. 4 is a section on the line 1313 of Fig. 1; Fig. 5is a top plan of the supporting-bracketfor the loopcr-carrier showingthe latter in horizontal section; and Fig. 6 is a section on the line15-45 of Fig. 1.

The frame of the machine is indicated by 1, the driving-shaft bf, 2,which carries at its outer end the usual drivin -pulle and handwheel.Adjacent the pn ey is t e eccentric 3, surrounded by the strap 4,pivoially eonnested at its upper end to the needle -bar actuating lever5. pivoted to the frame of the machine at 6, having the depending arm 7,and the overhanging arm 8, connected by a link 9, to asuitable sleeve10, clamped to the needle-bar 11, carryin at its lower end the needle12, b means 0 the needle-clamp hereafter descri The um 8, of the lever5, is provided with a number of perforations 13, the object of which isto remove therefrom a great deal of the material of said arm, thusrelieving the same of considerable of its weight and render-in the sameexceedingly light. The rest of t e lever 5, may be likewise treated forthe same purpose.

The link 9, is connected to the arm 8, and sleeve 10, by means of hollowjournal-pins 9", such construction admitti the insertion of oil in thesaid pins for In ricating purposes: and it has been found in practicethat the oil thus contained in the pins will not fly out, but willslowly overflow the end of the pins, creep along the outside of thelatter and gradually and effectually lubricate the journals, this beingdue to capillary attraction. Usually two links 9, are emplo ed and thejournalins are clamped and he (1 at 9, by the usual form of split-clamp,the links being on opposite sides of and embracing said clamps.

The arm 7, of the lever 5, is provided at its lower end with asupporting-screw 7*, which is rigidly held in said arm in any suitablemanner, by means of which the holder for the looper-rod is connectedthereto. Said holder 1-1, consists of the s lit clamp, the parts ofwhich are adjusts 1e so that the clamp may be freely held on the shankof the screw 7*, by means of the screw 15 passing through the splitportions of the clamp; and the extension 16., is provided with a roove17, in which is seated one end of the oper-rod l8, and held by the screw19. This connection is simple, efiective and cheap, and rovides a readymeans for coir nection an adjustment so that the cl may 'work easily onthe screw and be a justed thereon to the proper extent. From thisconstniction it wil be ap rent that the split portion of the angular 0amp or holder 14 can be adjustably set upon the shank of screw 7", bymeans of the clamping-screw 15; that is to say, by loosening the screw15, the

angular holder or clamp may be given the desired freedom of movement ont c screw 7, relatively to the depending su portingnm or extension 7 oft e lever 5, movement. being on and around the screw 7". This enableswear to be taken up variation in the screw to be compensated or, andallows the clamp or holder 14 to assume any proper angle relatively t0the looper-carrrer in assembling the parts or during the operation ofthe machine, so that the connectingrod 18 may be pro erly directedtoward and for connection wit 1 the. loopcr-carrier. The clamp or holderif! at the other end of the connecting-rod 18 being of similarcharacter, may be likewise connected to the looper-carrier for likepurposes. T he connecting-rod 18. as previously described, may also beadjusted lengthwise of the extension 16 ot the clamp or holder 1-l forobvious reasons, by

rovlding said rod with a longitudinal slot 18 through which the screw 19works, and the two adjusting and connecting means ust describedobviously also render the clamp 14 and rod 1H relatively adjustablewhile on the machine.

The looper-rod In, is substantially rectangular in cross section.-seeFig. 3,and is provided longitudinally with a rib 18", formed bydepressing the. metal thereof so as to convex the same. Thisconstruction renders the looper-rod exceedingly light and strong, thebead or flange 18, lending strength to the rod. overcoming longitudinalbending or flexing thereof, and preventing vibration. At its forward endthe looperrod 18, is connected by means of a clamp 30, to thelooper-carrier, said clam and its connection with the rod and wit: thecarrier, being in all material respects substantially the same as theclamp 14. The 100 elf-carrier '21, is provided at its upper en with thesocket 2-2. in which is suitably clamped the looper The loopencarrier:21, has fixed thereto at its lower end, a short-shaft or journal :24,by means of a clamping screw 25. The shaft 24, has its bearings atopposite ends in the sleeves 26, which are clamped, respectively, in thebrackets :27, formed upon the slide 28, dovetailed into the bedlate ofthe frame. The brackets 27, are in t e form of split clamps and securelybind the sleeves '26. by means of the screws 29. The slide is adjustablein the bed-plate, and is held in any desired position by means of thescrew 30, extending therethrough and bearin u )on the bed-plate, so asto force the incline e ges 28", of the slide against the complementalportions of the bed-plate. This enables the looper carrier 21, to beproperly and accurately adjusted relatively to the needle.

A bracket 31, is suitably secured to the bed late by means of screws 32.and is pruvide with a split standard 33, in which is clamped the hollowpin 34, by means of the screw Links 36, are supported upon the pin 34,embrace the standard 33, and at, their upper ends are connected to thehollow pin 37, and embrace the spreader carrier 38, in which the saidpin 37, is suitably clamped by means of the screw 39, the said carrier38,

being split for the purpose. The pins 34, and 37, and their journals andbearings, are lubricated in the same manner as described above inconnection with the pins 9. At its forw rd end the. spreadenearricr 38.is provided with a clamp-socket 40, in which the stem of the spreader11, is clamped by means of the screw 42. The rear end of thespreader-carrier is provided with an enlargement 4-3, circular in formaffording a bearingsocket for the reception of a ball -14, boreddiametrically for the reception of a pin 4:3, which slides freely insaid ball. The carrier 38, within and on opposite sides of itsenlargement 4-3, is provided with journalbearings 46. the ends of whichare depressed correspondingly to the surface of the ball, and engage thelatter and atiord bearings therefor. The pin 45. is fixed by means ofthe screw 17, to the clamp member 48, which embraces the looper-rod 18,said member having the overhanging lip 49, and the bevelcd flange 50,for the purpose. A clamp )late or block 51, having its inner face madein the form of a truncated pyramid, engages the lower edge of thelooper-rod and the beveled flange 50, of the member 48, and is securelyheld in place by means of the screw 52, passing through said block 51,and screwing into the member 48. This construction of clamp, as will beobvious, se-

cnrely binds the members thereof to the loopcr rod and prevents anymovement of the parts relatively, the beveled flange 50, and thecorresponding face of the member 51. enabling the latter to be wedgedtightly against the lower edge of the rod 18, and force its upper edgeunder the lip 49. Moreover, the connection between the looper-rod andspreader-carrier is, by this construction, sin'iple. strong andefiective, and makes an easy and light runnin medium for thetransmission of power From the looper-rod to the spreader-carrier.

The spreader 41, has the U-shapcd shank, one arm of which is held in thesocket 40 of the carrier 38. The body of the spreader is connected to,or formed in continuity with, the other arm of the shank, is properlycurved, and extends therefrom at. substantially a right-angle. The bodyof the spreader may be provided with the usual eyes and thread groovefor properly carrying a thread. This form of spreader has been foundexceedingly useful and important. in thatit can be passed through a verysmall opening in the cloth-plate, and can also be used in operating uponlace edgings and open-work, because. it. can be passed between the barsand meshes thereof without catching and lay an ornamental inner edgingin like manner as upon the extreme edge of other fabrics.

A needle-clamp 55, secured to the end of the bar 11, carries the needle12, this clamp being of the form shown in my patent granted March 2,1909.

From the above construction of the arts of my machine it will be clearthat. I ave provided a light running machine, capable of attaining veryhigh speed, because by makin the needle-lever light, as above describec,and rendering the looper-rod light and strong, the inertia of heavyparts, heretofore employed in sewing machines of this class, does nothave to be contended with nor taken into consideration in theconstruction and o eration of the machine. Moreover, by malting thejournal pins 9*, 34, and 37, hollow as described, the machine is thorouhly lubricated at points where the wear ant friction are greatest. Thusthe wear and strain on the connection between the eccentric 3. and strap4, and the latter and the needlelcver, am quite materially reduced andovercome. it being well lrnown in the art that these points areexceedingly weak and most likely to snap and break.

it will further be seen that, by the connection provided between thelooper-rod and the spreader-ca rrier, several desirable results areobtained. For example, the rocking of the carrier over its fulcrum has atendency to cause the connection between the same and the looper-rod tovibrate excessively, and when a circular loopera'od is used suchvibration cannot be overcome. This vibration at the connectionmultiplies exceedingly at the point. of the spreader, causin excessiveside movement of the latter an resultin; in preventing the needle frompro erly cooperating with the spreader an its thread. By my constructionthe vibration of the connection between the spreader-carrier and thelooper-rod is reduced to a minimum, and substantially no side movementor vibration occurs at the point of the reader. These ate importantfunctions in t is class of machines, and es )ecially in operating uponlace or open-wor k fabrics.

Having thus described my invention what- I claim and desire to secure byLetters Patcm is:

1. A sewing machine comprising a spreader and a s reader-carrier, abracket for sup )orting said carrier, a ivota-l connection etween saidbracket an carrier including a link and hollow journal pins conne ting'said link with said bracket and carrier respectively.

'2. In combination. a looper and a hope:- carrier. :1 spreader and aspreader-carrier, actuating means therefor including a connectionbetween the two carriers com rising a pin fixed to one art, a socket.fix to annt ier part, and a all in the socket having a loose slidingconnection with the pin.

3. In combination, a looper and a loopercarrier, :1 spreader and aspreader-carrier,

acluat lug means therefor including a clamp, one portion of which isprovided with an overhanging lip and a beveled extension and anotherportion of which is substantially in the form of a truncated pyramid,and means for holding the two parts together.

4. In combination, a looper and a loopercarrier. a spreader and aspreader-carrier, means for actuating the same, said means including arod, a clamp secured thereto, and a loose sliding connection betweensaid clamp and the spreader-carrier.

5. In combination, a looper and a loopercarrier, a spreader and aspreader-carrier, means for actuating the same, said means includingarod substantially rectangular in crosssection. a clamp secured thereto,and a loose sliding connection between said clamp and thespreader-carrier.

(5. A sewing machine comprising stitchforiuing mechanism including inits actuating parts a driving-lever, in combination with alink-connection between said lever and a part of the stitch-formingmechanism, and ho low journal pins connectin the link respectively withsaid part and sai lever.

7. A sewing machine having in combination a looper and a looper-carrier;a driving-lever for actuating the said carrier; :1 connection betweenthe lever and carrier, including a concave-convex rod having greaterbreadth than thickness, and an lar clamp, one portion of which clampparallels said rod: means for adjnstably connecting said portion of theclamp to the rod; an means for adjnstably oonnect' the other portion ofthe clamp to one of e other of said elements.

8. A sewing machine comprising a looper and a looper-carrier, a bracketfor supporting the same, means for adjusting the bracket, ashaft clampedto the carrier, and hearings on the bracket for said shaft.

9. A sewing machine comprising a looper and a 100 er-carrier, a shaftsecured to the carrier, a racket su porting the shaft, journal sleevescarried y the bracket in which the shaft operates, and means foradjustably clamping the sleeves in the bracket.

10. A sewing machine compri a looper and a looper-carrier, a shaftadlustably secured to the carrier, a bracket, and means for supportingthe shaft in the bracket which permit of a relative adjustment betweenthe two.

11. A sewing machine comprising a. spreader and a spreader-carrier, ajournal support for said carrier extending on up 0- site sides thereofbetween its ends, means or adjustably clamping the journal supportin thecarrier, means or pivotally supportin said carrier which embraces thelatter an engages said sup rt, and means for supporting the sprea er onthe carrier.

12. sewing machine comprising a sn'eader and aspreudebuarrier, anadjusta le journal earned by said carrier and extending transverselythereof on opposite sides, IHPHDS for supporting said carrier whichengages said ournal, and a clampsucket also carried by thespreader-carrier for adjustably supporting a spreader.

ln testimony whereof I have hereunto slgped my name in (lie presence oftwo subscrlbing witnesses.

JOHN P. \VEIH.

W itnessw CHAR. McC. (humuri, M. B. Houm. I

